Patents
Patents for H01Q 21 - Aerial arrays or systems (25,127)
06/2000
06/13/2000US6075494 Compact, ultra-wideband, antenna feed architecture comprising a multistage, multilevel network of constant reflection-coefficient components
06/13/2000US6075493 Tapered slot antenna
06/13/2000US6075491 Chip antenna and mobile communication apparatus using same
06/13/2000US6075488 Dual-band stub antenna
06/13/2000US6075486 Antenna device
06/11/2000CA2255516A1 Multiport antenna and method of processing multipath signals received by a multiport antenna
06/08/2000WO2000033419A1 Circular direction finding antenna
06/08/2000DE19855115A1 Mehrlagige Antennenanordnung Multi-layer antenna arrangement
06/07/2000EP1006609A2 Broadband fixed-radius slot antenna arrangement
06/07/2000EP1006608A2 Multi-layered antenna arrangement
06/07/2000EP1006606A1 A holder and a method for transferring signals between apparatus and holder
06/07/2000EP1006605A1 Hand-held apparatus
06/07/2000EP0754355B1 A large phased-array communications satellite
06/06/2000US6072439 Base station antenna for dual polarization
06/06/2000US6072432 Hybrid power tapered/space tapered multi-beam antenna
06/02/2000WO2000031827A1 A feeder horn, intended especially for two-way satellite communication
06/02/2000WO2000031824A1 Improvement of polarization isolation in antennas
05/2000
05/31/2000EP1005103A1 Array antenna and method for operating the array
05/31/2000EP1004150A2 Method and apparatus for compensation of diffraction divergence of beam of an antenna system
05/31/2000EP0890226B1 Radio station with circularly polarised antennas
05/31/2000CN1254966A Bipolarized antenna for base station
05/30/2000US6069592 Meander antenna device
05/30/2000US6069591 Diversity antenna system
05/30/2000US6069590 System and method for increasing the isolation characteristic of an antenna
05/30/2000US6069589 Low profile dual frequency magnetic radiator for little low earth orbit satellite communication system
05/30/2000US6069586 Antenna operating with two isolated channels
05/25/2000WO2000030214A1 Multiple loop antenna
05/24/2000CN1254449A Multi-frequency antenna
05/24/2000CN1254447A Antenna system, in particular for pointing moving nonsynchronous satellites
05/24/2000CN1254444A A coupler for multi-frequency antenna
05/23/2000US6067058 End-fed spiral antenna, and arrays thereof
05/23/2000US6067055 Polarization diversity antenna array
05/23/2000US6067053 Dual polarized array antenna
05/23/2000US6067051 Apparatus and method of mounting VHF/UHF antenna assembly on satellite dish antenna
05/23/2000US6067048 Radar apparatus
05/23/2000US6067047 Electrically-controllable back-fed antenna and method for using same
05/18/2000WO2000028623A1 Planar antenna with an optimised coupling network
05/18/2000WO2000028620A1 Low cost methods of fabricating true-time-delay continuous transverse stub array antennas
05/18/2000WO2000028350A1 System for measuring and displaying three-dimensional characteristics of electromagnetic waves
05/18/2000WO2000028344A1 Antenna and method for two-dimensional angle-of-arrival determination
05/17/2000EP1000489A1 Methods and apparatus for canceling adjacent channel signals in digital communications systems
05/17/2000EP1000445A1 Antenna network for base station radiocommunication with mobile telephones
05/16/2000US6064351 Chip antenna and a method for adjusting frequency of the same
05/16/2000US6064350 Laminated aperture-faced antenna and multi-layered wiring board comprising the same
05/16/2000US6064348 Method and apparatus for a dual frequency band antenna
05/16/2000US6064336 GPS receiver utilizing a communication link
05/16/2000CA2012048C An arrangement for supplying power to a hollow wave-guide intended for electromagnetic microwaves
05/11/2000WO2000027139A1 Method and point-to-multipoint communication system utilizing optimized communication vectors
05/11/2000WO2000026992A1 Method for producing radio-frequency wave receivers by interconnecting three dimensional integrated circuits
05/11/2000WO2000026991A1 Rotating field antenna with a magnetically coupled quadrature loop
05/11/2000WO2000026856A2 Radio frequency identification system
05/11/2000DE19850895A1 Mikrowellenantenne mit optimiertem Kopplungsnetzwerk Microwave antenna with optimized coupling network
05/11/2000CA2349436A1 Rotating field antenna with a magnetically coupled quadrature loop
05/10/2000EP0999608A1 Multifunctional printed antenna
05/09/2000US6061579 Hand-held mobile phone terminal
05/09/2000US6061562 Wireless communication using an airborne switching node
05/09/2000US6061035 Frequency-scanned end-fire phased-aray antenna
05/09/2000US6061034 Power enhancer for solid state switched ultrawideband pulsers and array transmitters
05/09/2000US6061032 Device in antenna units
05/09/2000US6061031 Method and apparatus for a dual frequency band antenna
05/09/2000US6061026 Monolithic antenna
05/04/2000WO2000025385A1 Broadband antenna incorporating both electric and magnetic dipole radiators
05/04/2000WO1999054960A9 Phased array antenna calibration system and method using array clusters
05/04/2000DE19948039A1 Antennen-Array-Kalibrierung Antenna array calibration
05/03/2000EP0998156A2 Sectorized multi-function cellular radio communication system
05/03/2000EP0997969A2 An external POD with an integrated antenna system that excites aircraft structure, and a related method for its use
05/03/2000EP0997927A2 Microwave applicator with annular waveguide, plasma processing apparatus having the same, and plasma processing method
05/03/2000CN1252175A Microstrip antenna and array antenna
05/03/2000CN1252174A Device in antenna units
05/02/2000US6057807 Dual band antenna means incorporating helical and elongated radiating structures
05/02/2000US6057806 Cross-polarized around-tower cellular antenna systems
05/02/2000US6057804 Parallel fed collinear antenna array
05/02/2000US6057803 Antenna apparatus
05/02/2000US6057802 Trimmed foursquare antenna radiating element
05/02/2000US6057801 Multiple frequency array antenna
05/02/2000US6057799 Interferometric hyperfrequency radiometry system with mechanical scanning
05/02/2000US6056780 Method for the positioning of electromagnetic sensors or transmitters in an array
05/02/2000CA2185863C Antenna device
04/2000
04/27/2000WO2000024137A1 Antenna array for a radio station which can be operated in a plurality of frequency ranges, and a radio station
04/27/2000WO2000024085A1 Crossed bent dipole antenna
04/27/2000WO2000024084A1 Coaxial cavity antenna
04/26/2000EP0996192A2 Planar array antenna
04/26/2000EP0995128A1 Radar plant and measurement technique for determination of the orientation and the depth of buried objects
04/26/2000EP0750827B1 Sectorized multi-function cellular radio communication system
04/26/2000CN1251691A Communication system, primary radio station, secodary radio station and communication method
04/26/2000CN1251483A Cross-polarization emitting antena and emitting method thereof
04/25/2000US6055021 System and method for obtaining synchronization to a digital frame
04/25/2000US6054966 Antenna operating in two frequency ranges
04/25/2000US6054963 Folded bow-tie antenna
04/25/2000US6052889 Radio frequency antenna and its fabrication
04/25/2000CA2032605C Highly directive radio receiver employing relatively small antennas
04/25/2000CA2030600C Aircraft antenna with coning and banking correction
04/20/2000WO2000022696A1 Compact stripline rotman lens
04/20/2000WO2000022455A1 System for detection of objects in the ground
04/20/2000WO2000022451A2 A dual channel microwave transmit/receive module for an active aperture of a radar system
04/20/2000WO2000022297A1 Method and device for converting radiant energy to electric energy
04/20/2000WO1999052181A3 Multi-beam transmit array with low intermodulation
04/20/2000CA2344400A1 A dual channel microwave transmit/receive module for an active aperture of a radar system
04/19/2000EP0994567A2 Orthogonally polarized transmission antenna and method of transmission
04/19/2000EP0994525A2 Antenna unit